TDK-Lambda CUS200LD Manuel D'installation page 21

7. External Fuse Rating
Refer to the following fuse rating when selecting the external input fuse.
Surge current flows when input turn on. Use slow-blow fuse or time-lug fuse. Fast-blow fuse can not be used.
Fuse rating is specified by inrush current value at input turn on.
Do not select the fuse according to actual input current (rms.) values.
CUS200LD : 3.15A
8. Before concluding that the unit is at fault...
Before concluding that the unit is at fault, make the following checks.
(1) Check if the rated input voltage is connected.
(2) Check if the wiring of input and output is correct.
(3) Check if the wire size is not too thin.
(4) Check if the output voltage is properly adjusted.
(5) Check if the output current and output power does not over specifications.
(6) Audible noise can be heard when input voltage waveform is not sinusoidal wave.
(7) Audible noise can be heard during Dynamic-Load operation.
(8) Ensure that large capacitor is not connected on the output side.
Please use within maximum external capacitance shown in below table.
If connecting more than the maximum capacitance value is required, please contact us for details.
9. Altitude
CUS200LD is safety approved for operation up to 5000m by IEC60950-1 clearance requirement.
Thermal evaluation should be considered for products operating at elevated altitudes above 2000m.
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TDK-Lambda
CUS200LD
INSTRUCTION MANUAL